diff --git a/source/libs/transport/src/transport.c b/source/libs/transport/src/transport.c
index a6c9cee0b7cd11fea255dc579024dfc1be560a6e..f33d54c4f3e4f2c08bdd2ef43bf5ddfb8f4a7638 100644
--- a/source/libs/transport/src/transport.c
+++ b/source/libs/transport/src/transport.c
@@ -151,6 +151,7 @@ typedef struct SRpcConn {
 } SRpcConn;
 
 // auth function
+static int  uvAuthMsg(SRpcConn* pConn, char* msg, int msgLen);
 static int  rpcAuthenticateMsg(void* pMsg, int msgLen, void* pAuth, void* pKey);
 static void rpcBuildAuthHead(void* pMsg, int msgLen, void* pAuth, void* pKey);
 static int  rpcAddAuthPart(SRpcConn* pConn, char* msg, int msgLen);
@@ -259,7 +260,7 @@ static bool isReadAll(SConnBuffer* data) {
   SRpcHead rpcHead;
   int32_t  headLen = sizeof(rpcHead);
   if (data->len >= headLen) {
-    memcpy((char*)&rpcHead, data->buf, headLen);
+    memcpy((char*)&rpcHead, data->buf + RPC_RESERVE_SIZE, headLen);
     int32_t msgLen = (int32_t)htonl((uint32_t)rpcHead.msgLen);
     if (msgLen > data->len) {
       data->left = msgLen - data->len;
@@ -283,7 +284,7 @@ static void uvDoProcess(SRecvInfo* pRecv) {
 
   // do auth and check
 }
-static int uvAuthData(SRpcConn* pConn, char* msg, int len) {
+static int uvAuthMsg(SRpcConn* pConn, char* msg, int len) {
   SRpcHead* pHead = (SRpcHead*)msg;
   int       code = 0;
 
@@ -334,16 +335,16 @@ static int uvAuthData(SRpcConn* pConn, char* msg, int len) {
 
   return code;
 }
-static void uvProcessData(SRpcConn* ctx) {
+static void uvProcessData(SRpcConn* pConn) {
   SRecvInfo    info;
   SRecvInfo*   p = &info;
-  SConnBuffer* pBuf = &ctx->connBuf;
+  SConnBuffer* pBuf = &pConn->connBuf;
   p->msg = pBuf->buf + RPC_RESERVE_SIZE;
   p->msgLen = pBuf->len;
   p->ip = 0;
   p->port = 0;
-  p->shandle = ctx->shandle;  //
-  p->thandle = ctx;
+  p->shandle = pConn->shandle;  //
+  p->thandle = pConn;
   p->chandle = NULL;
 
   //
@@ -351,9 +352,14 @@ static void uvProcessData(SRpcConn* ctx) {
   assert(rpcIsReq(pHead->msgType));
 
   SRpcInfo* pRpc = (SRpcInfo*)p->shandle;
-  SRpcConn* pConn = (SRpcConn*)p->thandle;
-
   pConn->ahandle = (void*)pHead->ahandle;
+  // auth here
+
+  int8_t code = uvAuthMsg(pConn, (char*)pHead, p->msgLen);
+  if (code != 0) {
+    terrno = code;
+  }
+  // rpcCheckAuthentication(pConn, (char*)pHead, pBuf->len);
   pHead->code = htonl(pHead->code);
 
   SRpcMsg rpcMsg;
@@ -383,6 +389,9 @@ void uvOnReadCb(uv_stream_t* cli, ssize_t nread, const uv_buf_t* buf) {
     }
     return;
   }
+  if (terrno != 0) {
+    // handle err code
+  }
 
   if (nread != UV_EOF) {
     tDebug("Read error %s\n", uv_err_name(nread));
@@ -547,6 +556,7 @@ static void connDestroy(SRpcConn* conn) {
   uv_timer_stop(conn->pTimer);
   free(conn->pTimer);
   uv_close((uv_handle_t*)conn->pTcp, NULL);
+  free(conn->connBuf.buf);
   free(conn->pTcp);
   free(conn->pWriter);
   free(conn);